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The 500 Cities project is a collaboration between CDC, the Robert Wood Johnson Foundation, and the CDC Foundation. The purpose of the 500 Cities Project is to provide city- and census tract-level small area estimates for chronic disease risk factors, health outcomes, and clinical preventive service use for the largest 500 cities in the United States. These small area estimates will allow cities and local health departments to better understand the burden and geographic distribution of health-related variables in their jurisdictions, and assist them in planning public health interventions. See bottom of page for the note for data users. Learn more about the 500 Cities Project.

How are you using 500 Cities data?

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Notice to 500 Cities Data Users:

Data about Papanicolaou (Pap) smear use among adult women aged 21-65 years were not available from the 2016 Behavioral Risk Factor Surveillance System for 8 states and therefore not available for 47 cities in those 8 states for the 500 Cities project. The affected states are: Arizona, Arkansas, Connecticut, Maryland, New Hampshire, Rhode Island, Vermont, and Washington. The 500 Cities dataset includes a record for this measure for those 47 cities but it is shown as an empty data cell and it is appropriately footnoted. The interactive map and the map books do not show the Pap test measure for the cities or their census tracts in the 47 cities in these 8 states.

In previous versions of 500 Cities datasets (released in 2016 and 2017), 6 census tracts from Tucson, Arizona were inadvertently omitted. The datasets have been corrected and users may download them from the 500 Cities Data Portal (https://chronicdata.cdc.gov/browse?category=500+Cities). The updated 500 Cities dataset released in 2018 is unaffected.

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